Q: The sun was covered by a thick cloud all morning, but luckily, by the time the picnic started, *it* was gone.
Are "The sun" and "it" the same?
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A: no


Q: Anna did a lot better than her good friend Lucy on the test because *she* had studied so hard.
Are "Anna" and "she" the same?
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A: yes


Q: I poured water from the bottle into the cup until *it* was full.
Are "the bottle" and "it" the same?
=======
A:
no